1. Prevalence of symptoms of gastroesophageal reflux during infancy: a pediatric practice-based survey: Pediatric Practice Research Group;Nelson;Arch Pediatr Adolesc Med,1997
2. One-year follow-up of symptoms of gastroesophageal reflux during infancy;Nelson;Pediatrics,1998
3. Prevalence of symptoms of gastroesophageal reflux during childhood: a pediatric practice-based survey;Nelson;Arch Pediatr Adolesc Med,2000
4. Prevalence of gastroesophageal reflux disease symptoms in an African American predominant adolescent high school population;Ramesh;J Pediatr Gastroenterol Nutr,2001
5. Prevalence of gastroesophageal reflux disease (GERD) symptoms in a Caucasian predominant adolescent population;Ramesh;Gastroenterology,2002